Demountable rim



June 30, 1925. 1,543,878

, E. E. SAWTELLE DEMOUNTABLE RIM Filed Aug. 10, 1922 Y rallying PatentedJune 30, 1925.

@WER E.. s AWTELL-E,

0F DES Monge-wwe nEMoUnrAnpE l MM;-

nppiicationmmea Aiigusi 1 0, .1922. Vserial m... 580575.

To @ZZ whom it may ooflweww.

Beit known um I, emma new `and useful Delnountable. Rim, of which thefollowing is a speoiication.

This inventionl rela-tes toV improvements in demountelole rims forautomobile Wheels.v

i The object of my invention isgto provide a Ademountalole rim ofysimple, .durable lendl inexpensive construction which 4may. he easilyand quickly applied to or 1:ernoved from the Wheel.' y

More specifically it is the object .o my in-` vention to provide Lademountablerim- Vfor enA automobile wheel so arranged1A thatby the[actuation Iof a single `meohanism the rim Will he positively lookedtothe Wheel', or hy` a reverse movement Lof :the lockingdee vice-the rimmay .be postively unlocked.; that is, the coacting locking memhersgmaybe positively moved out Aof.eng.agement .vs/ith each other 'sothat .therim fis free .to .removedf'fromzthe .wheel vvithouthaving tous@ ahemmeror. similar tool or `lmooliing -.}it loose. f" f 1 vThese andotherob-jeots will be `apparent rto those skilled in `the art.

`.My .invention iconsistszfin vfthe lconstrutiof arrangement `andcombination of the various partsothe device, whereby thewob jectscontemplated are. attained, as-s herein- Aater #more fully set.` 1forth,pointed out in my claims, .and illustrated inthe .accom- `drawings,ina-which: l Vlligure 2 .v1 is a iside;'elevftl 0n of: a wheel showingthe; manner in .vvhiohzmy improved .'misifappled thereto. A .smallportion .the :felly fof. the Wheel .is broken away f to show thefvalvestem opening. v:Fig-ure@ is. a detail. ectional-viewtaken on theline/2v2 of Figure/1f Figure Alisa detailSGCGOIIal View taken LonthelineA-l of Figure 3.

Figure L5.' isa. detail sectional View teken on the :lineV 5.-.-5 lofFigure :4. y

`ligure 6 4:is sectional perspective `vievv `showing :tvvo .of theVooacting looking members of vmy improved devioe `together.-vvith a,segmental portion off-the tiel-.1y Tand demountahle riin towvhiehtheyare re-Specf. tively attached, :lwlirgfmemhabllg shown. inoperative reletin with @mh Obli?? The numeral '10 indicates the felly ofen automobileivhel ll.` Thefelly-ls Provided with felly rim l2, one edge.ofiherseid extending ySlslfltly beyond the. .edge 0f the feller, whilethe opposite @des of the rim tially Atvvo Acondeved an;luljqir,grooveslland 14. .The; fel-ly rim is secured tolthe telly inthe usualmanner; 'Ehesaid elly rin is provided at itsedgeopposite the `one having the annulargrooves with a vseries of twofwey locking members l5, one of which isole-arly shown in Figure 6.

The member 15 is provided with tivo Wedel@ ,Shaped members l1.6 VandV17- flhe Said Wedge shapedmember 16 is yat right angles to the memberv1:7, and "has its ,base adjacent to the outenedge of :the elly rim l2and perpendfulu thereto. The `said Wedgel 1,6

extends eireumferentially lvv-iththefelly rim 12. The .wedge 17 l,hasits base adjacent `,to the .telly rimy and also extendsireumferentiallyvwithwthe said rim. AThese Wedges are ,felearly/ shovvnin Figure 6. Each fof .the Vlooking members 15 is mounted on the elly.rim ,at oint in lineithe Spokes of the .felly insu a manner ,that theweight .ofthe demountable rim hereinafter to be desribed will restadjacent `to the outer ends ofthe-spokes. Anyynumber of these lockingmembers may be used, .but I .find four are vsuffloient for yan ordinarysize wheeL The .demountable rim .18 issubstantially ofthe usualconstruction and preferably of the clinehertypd the saiddemoiuitablerinr .being designed 4to have oneof its edges 19- rest ,inthe amiular groove 14 vof .the felly rim,as clearly shovvn in Figures 2,and3. The said demountable'rim is of such diameter thatv a slight 4space is left betvveenits inner acekand .theouter face ,of the rfellyrim.

The inner face ofthe demountabgle rim has its edge opposite the o-nelvvhioh engages the,.groov e 14 provided with .a series fof anismannular groove 14 being so, inclined that the.

rim will be wedged oiuiwardly fromV the Wheel center. Vhen the block 20engages the wedge 17 the opposite edge of the rim 18l will also bewedged outwardly from 'Y the ,center of the wheel.

Thus it will be seen that by simply rotating the rim 18 ina clockwisedirection, as shown-in Figure 1, the said rim willfbe locked or rigidlylsecured to the rim 12.

' The-telly 10 is provided with a slot'f21 or'receiving the valve stem22. ABy providing the slot 21 instead ofthe usual opening, vit will beseen that the stem 22 may be ,permittedto move within the slot a Suth-`cient distance toi-'permit therotary movement of the rim'beforementioned.

F or rotating the `rim` 18 relative to .the rim 12, I have provided thefollowing mech- 4. The rim 12 is provided with 'a pair of transverselyarranged cleats 23. The cleats 23 have their inner edges beveled 'tolform aV dove tailed groove 24.

' `Slidablyfmounted in the dove tailed groove 24, I have-provided a.slideI bar 25' which is free tocmove transversely ofthe rim,^and whichis clearly illustrated in Figures 4 and 5. The slide barf25 hasmounted'on its outer face a slide `plate 26 secured in' position bymeans of rivets' 27, the plate 26 having one'pof its Vedges providedwith an inwardly extending portion 28." Y

. The front and back edgesV of the plate 26- are beveled relative to itsside edges in such `a manner that the outer face of the plate 26 formssubstantially a parallelogramv.`y l 'l The rim 18 hasz'its'innerV faceyprovided with a pair of parallelrangular cleatsy29 Y which are soarranged as to engage' the beveled edges of theA plate 26 so thatthesaid plate is free to slide" between the inner edges of the angularcleats 29. These cleats are secured in position by means of rivets 30.VIn the telly-'10 and adjacent tothe inner face ofthe rim 12 andopposite-the slide bary 251 provide a transversely--arrangedscrew"threaded-"member 31v designed to receive a transversely arrangedscrewthreaded bolt 32. The bolt32 has its outer end provided with acollar 33 and designed to extend rotativelyI through the member 28. The'outer end of the boltv 32' isprovided with a head 34 designed 'to restagainst the outer face of the member28 while 'the colllar 33 is designedto restagainst the inner face ofV the member 28. i 'Y Thus it will beseen that ifthe head 34 is rotated, thel screwv threaded bolt 32 will berotated and the member 25* will 'be moved between the rims 18 and 12,causing on 'its'v outer face VThusit will be seen that a demountablerim` of simple, ydurable Aand I1,543,8'ie

rotated in an anti-clockwise direction, and` the wedge members l5 and2(l.wil1 disengage each other. Y

'By ,this arrangement it will be seen that by simply operating a singlebolthead with a suitableWrenCh, :the ,demountable rim may be .easily-andquickly removed from the telly rim. The said demountable rim is rotatedin an anti-clockwise direction until the members `15 and 2O are entirelyout of engagement with` eachother, after which the rim 18 is simplyremoved laterally from the wheel. Y y j In replacing the rim it isnecessary to lirst place .the stem 22m thevslot 21 and then slide therim 18 in position by moving it laterallyin the.usual manner, and thenplacingthe plate 26 .between the cleats 29, andthen operating the bolt32, as before described. 1 l 1 In thisV connection -it should be bornein mind that the plate 26 and thebolt32 `never have toV be removedentirely from the rim 12 onaccount of the inner` end `ofthe member 25extending inwardly further than the inner end of the member 26,. whichypermits the inner end of the member 26 to be moved outwardly to a pointin alinement with the outer end of the members 29, `which entirelyreleases the rim 19v from the rim A12. vThe upp'er'portion of therim 419may then be elevated a Vslight distance as seen in Figure 1, until themembers 29 rest in a `plane above the member 26 after which the upperpor- 29 are out of alinement with themember 26,

after which the rim 19 may then be lowered f and the stem 22 removedfrom-the opening 21.` That is,vthe 'slide bar will always rest in thegroove 24, and theinner endof the bolt 32 within the member 31. f l

It should also be borne in mindthat the wedge-members 16 and 17 shouldbe placed on the rim 12 in such a mannerthat the torsional action oftherear. wheels while the car is being advanced will have a tendency totighten the'idemountable rim; i It will be self-evidentthat therimshould be made inrights and lefts. Y n

I have `provided inexpensive construction which `may be easily andquickly Vattached or detached from the rim, and when attached it will berigidly secured in position.

I claim as my invention:

1. In combination, a elly rim, a demountf able rim, means for causingthe demountable rim to be locked to the felly rim by rotating thedemountabl'e rim relative thereto, means for rotating said demountablerim comprising a set of angular cleats secured to said demountable rim,a slide bar on said telly capable of transverse movement, a slide plateon said slide bar operatively mounted between said angular cleats, andmeans tor actuating the slide bar.

2. In combination, a elly rim, a demountable rim, means for causing thedemountable rim to be locked to the :telly rim by rotating thedemountable rim relative thereto, means for rotating said demountablerim comprising a set of spaced parallel cleats secured to said felly rimand arranged transversely therewith, said cleats being arranged to forma dove tail groove, a slide bar for said groove, a plate for said slidebar having its transverse edges inclined and parallel with each other, apair of angular cleats for said demountable rim designed to coact withthe inclined edges of said plates, and a laterally extending screwthreaded bolt for actuating said plate and said slide bar.

3. The combination of a :telly rim having one edge provided with anoutwardly and laterally extending flange portion, said fiange portionhaving one face provided with an annular groove, the opposite edge ofsaid felly rim having its outer face provided with a series of two-waylocking members, a demountable rim having one edge designed to coactwith the annular groove of said felly rim and rotatively mountedrelative thereto, and its inner face provided with a series of lockingblocks designed to coact with said two-way locking members7 a set ofangular cleats'a slide bar on said i'elly rim, a slide plate on saidslide bar operatively mounted between said angular cleats, and alaterally extending screw threaded bolt for actuating said slide plateand slide bar.

Des Moines, Iowa, July 3l, 1922.

ELVER E. sAwTELLE.

